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Finding the Fourth Proportional to 48,338.30, 72,512.47 and 16,748.30

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Solution

The fourth proportional to 48,338.30, 72,512.47 and 16,748.30 is: 25,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,338.30 : 72,512.47 = 16,748.30 : x
  2. Step 2: Convert to fraction form
    48,338.30/72,512.47 = 16,748.30/x
  3. Step 3: Cross multiply
    48,338.30x = 72,512.47 × 16,748.30
  4. Step 4: Simplify right side
    48,338.30x = 1,214,460,709.31
  5. Step 5: Solve for x
    x = 1,214,460,709.31/48,338.30
  6. Step 6: Final answer
    x = 25,124.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.